CN113674887A - Lead-free X-ray and gamma-ray protection hard material and preparation method thereof - Google Patents
Lead-free X-ray and gamma-ray protection hard material and preparation method thereof Download PDFInfo
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- CN113674887A CN113674887A CN202110960495.2A CN202110960495A CN113674887A CN 113674887 A CN113674887 A CN 113674887A CN 202110960495 A CN202110960495 A CN 202110960495A CN 113674887 A CN113674887 A CN 113674887A
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- 239000000463 material Substances 0.000 title claims abstract description 64
- 230000005251 gamma ray Effects 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 42
- 239000004698 Polyethylene Substances 0.000 claims abstract description 22
- -1 polyethylene Polymers 0.000 claims abstract description 22
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 19
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 19
- 239000004709 Chlorinated polyethylene Substances 0.000 claims abstract description 17
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 17
- 229910000416 bismuth oxide Inorganic materials 0.000 claims abstract description 17
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 claims abstract description 17
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 17
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000008117 stearic acid Substances 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 16
- 229910001938 gadolinium oxide Inorganic materials 0.000 claims abstract description 15
- 229940075613 gadolinium oxide Drugs 0.000 claims abstract description 15
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229920000573 polyethylene Polymers 0.000 claims abstract description 15
- 229910001936 tantalum oxide Inorganic materials 0.000 claims abstract description 15
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 12
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000007822 coupling agent Substances 0.000 claims abstract description 11
- 230000005855 radiation Effects 0.000 claims abstract description 11
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 8
- 239000004743 Polypropylene Substances 0.000 claims abstract description 5
- 239000006084 composite stabilizer Substances 0.000 claims abstract description 4
- 229920006351 engineering plastic Polymers 0.000 claims abstract description 4
- 229920001155 polypropylene Polymers 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 45
- 230000001681 protective effect Effects 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- 239000002131 composite material Substances 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 10
- 239000012760 heat stabilizer Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229920000265 Polyparaphenylene Polymers 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000007888 film coating Substances 0.000 claims description 2
- 238000009501 film coating Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims 1
- 239000004793 Polystyrene Substances 0.000 abstract description 2
- 239000000654 additive Substances 0.000 abstract 1
- 229920002223 polystyrene Polymers 0.000 abstract 1
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 description 12
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 6
- 241000282414 Homo sapiens Species 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 241000282412 Homo Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F1/00—Shielding characterised by the composition of the materials
- G21F1/02—Selection of uniform shielding materials
- G21F1/10—Organic substances; Dispersions in organic carriers
- G21F1/103—Dispersions in organic carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F1/00—Shielding characterised by the composition of the materials
- G21F1/02—Selection of uniform shielding materials
- G21F1/10—Organic substances; Dispersions in organic carriers
- G21F1/103—Dispersions in organic carriers
- G21F1/106—Dispersions in organic carriers metallic dispersions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/06—PVC, i.e. polyvinylchloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2505/00—Use of metals, their alloys or their compounds, as filler
- B29K2505/08—Transition metals
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
本发明公开了一种无铅的X、γ射线防护硬质材料及制备方法，主要涉及辐射防护材料领域。其原料包括树脂基材、功能性粒子和助剂，所述树脂基材与功能性粒子的重量配比为1：1.5‑3.5；所述树脂基材包括聚氯乙烯、聚乙烯、聚丙烯、聚苯烯、工程塑料中的任一项或几项的组合；所述功能性粒子包括钨粉、氧化铋、氧化钆、氧化钽；所述助剂包括钙锌复合稳定剂、氯化聚乙烯、硬脂酸、聚乙烯蜡、偶联剂。本发明不含铅，绿色环保，对于X、γ射线的防护等级高。The invention discloses a lead-free X and gamma ray protection hard material and a preparation method, and mainly relates to the field of radiation protection materials. The raw materials include a resin base material, functional particles and additives, and the weight ratio of the resin base material and the functional particles is 1:1.5-3.5; the resin base material includes polyvinyl chloride, polyethylene, polypropylene, Any one or a combination of polystyrene and engineering plastics; the functional particles include tungsten powder, bismuth oxide, gadolinium oxide, and tantalum oxide; the auxiliary agents include calcium-zinc composite stabilizer, chlorinated polyethylene , stearic acid, polyethylene wax, coupling agent. The invention does not contain lead, is green and environmentally friendly, and has high protection levels for X and γ rays.
Description
Technical Field
The invention relates to the field of radiation protection materials, in particular to a lead-free X-ray and gamma-ray protection hard material and a preparation method thereof.
Background
With the development of science and technology, radiation technology brings great convenience to human beings, but also brings worry about the problem that ionizing radiation affects human or biological health, and because of the harm of radiation, a layer of shielding object or body is added or arranged between people and a radiation source in hospitals, nuclear power, military industry, industrial flaw detection, scientific research and other places to ensure the safety of human or biological.
Early protective materials generally adopt lead plates, but the lead plates have too large specific gravity per unit volume, are soft in texture and have no regular shape, and free lead atoms are dispersed in the air in the using process and are harmful to human bodies or organisms; the radiation impinging on the lead plate produces a compton effect that produces scattered radiation that can cause secondary damage to humans or living beings in the environment. The construction cost is high, the appearance is not beautiful, and the environment is polluted.
Disclosure of Invention
The invention aims to provide a lead-free hard X-ray and gamma-ray protection material and a preparation method thereof, which are lead-free, green and environment-friendly and have high protection level on X-ray and gamma-ray.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the lead-free X-ray and gamma-ray protection hard material comprises the following raw materials of a resin base material, functional particles and an auxiliary agent, wherein the weight ratio of the resin base material to the functional particles is 1: 1.5-3.5;
the resin substrate comprises any one or a combination of polyvinyl chloride, polyethylene, polypropylene, polyphenylene and engineering plastics;
the functional particles comprise tungsten powder, bismuth oxide, gadolinium oxide and tantalum oxide;
the auxiliary agent comprises a calcium-zinc composite stabilizer, chlorinated polyethylene, stearic acid, polyethylene wax and a coupling agent.
Further, the resin base material is polyvinyl chloride.
Furthermore, the weight ratio of the resin base material to the tungsten powder, the bismuth oxide, the gadolinium oxide and the tantalum oxide is 1:1 xX: 0.62 xX: 0.2 xX: 0.21 xX, wherein the value range of X is 1-6.
Further, the purity of the tungsten powder is not less than 98%, the granularity is not less than 300 meshes, and the density is not less than 19g/cm3；
And/or the presence of a gas in the gas,
the bismuth oxide is alpha type or beta type, the purity of the bismuth oxide is not less than 99%, the granularity is not less than 300 meshes, and the density is not less than 8.5g/cm3；
And/or the presence of a gas in the gas,
the gadolinium oxide has the purity of not less than 95%, the granularity of not less than 300 meshes and the density of not less than 7.4g/cm3；
And/or the presence of a gas in the gas,
the purity of the tantalum oxide is not less than 98%, the granularity is not less than 300 meshes, and the density is not less than 8.7g/cm3。
Further, the raw materials comprise the following components in parts by weight:
100 parts of polyvinyl chloride, 350 parts of tungsten powder, 217 parts of bismuth oxide, 70 parts of gadolinium oxide, 73.5 parts of tantalum oxide, 7 parts of calcium-zinc composite heat stabilizer, 8 parts of chlorinated polyethylene, 1 part of stearic acid, 1.5 parts of polyethylene wax and 5 parts of coupling agent.
Further, the preparation method comprises the following steps: the raw materials are evenly stirred and then are extruded and molded to obtain the composite material.
Further, the preparation method comprises the following steps: the raw materials are uniformly stirred in a temperature-controlled stirring device, and after the mixture is cooled to below 30 ℃, the mixture is added into a plastic extruder for extrusion, and then the mixture is cooled and coated with a film, so that the composite material is obtained.
Further, the preparation method comprises the following steps:
adding the resin base material into a temperature-controlled stirring device, stirring for 5 minutes at the temperature of 40-50 ℃, adding the functional particles and the auxiliary agent, and stirring at a high speed for 15 minutes at the temperature of 70-80 ℃ to obtain a raw material mixture;
cooling the raw material mixture to below 30 ℃;
feeding the cooled raw material mixture into a plastic extruder, heating the raw material mixture in a first zone to 125 ℃, heating the raw material mixture in a second zone to 165 ℃, heating the raw material mixture in a third zone to 165 ℃, heating the raw material mixture in a fourth zone to 150 ℃ and heating the raw material mixture in a fifth zone to 135 ℃, injecting the raw material mixture into a forming die, then forming the raw material mixture through the die, cooling and forming the raw material mixture, cooling the raw material mixture in a water tank, drawing the raw material mixture through a tractor, coating a film on a heating film coating machine, and cutting the raw material mixture through a fixed-length transverse cutting machine to prepare the hard protective material, wherein the forming die comprises two sets of front and back arranged devices and are provided with cooling circulating water devices;
and cooling the extruded protective material, laminating, and baking and heating the film and rolling by a plastic roller.
Further, when in specific application, the material is used for protecting hard materials from X-ray and gamma-ray radiation.
The preparation method of the lead-free X-ray and gamma-ray protection hard material is used as another aspect of the invention.
Compared with the prior art, the invention has the beneficial effects that:
the technology adopts the resin base material, adds the functional particles and the auxiliary agent in combination, mixes and then extrudes and molds through a plastic extruder, and the obtained hard material has higher lead equivalent and can have good protection and shielding effects on X and gamma ray radiation. And lead is not contained, and green and environment-friendly processing and using processes can be realized.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
The instruments, reagents, materials and the like used in the following examples are conventional instruments, reagents, materials and the like in the prior art and are commercially available in a normal manner unless otherwise specified. Unless otherwise specified, the experimental methods, detection methods, and the like described in the following examples are conventional experimental methods, detection methods, and the like in the prior art.
Example 1:
a lead-free X-ray and gamma-ray protective hard material comprises the following raw materials by weight:
100 parts of PVC (polyvinyl chloride), 150 parts of W (tungsten powder), 93 parts of Bi2O3 (bismuth oxide), 30 parts of Gd2O3 (gadolinium oxide), 31.5 parts of Ta2O5 (tantalum oxide), 7 parts of calcium-zinc composite heat stabilizer, 8 parts of CPE (chlorinated polyethylene), 1 part of SA (stearic acid), 1.5 parts of PE wax (polyethylene wax) and 5 parts of KH550 (coupling agent).
The materials are put into a speed-adjustable temperature-controlled stirring device, after the materials are uniformly stirred at a high speed, the mixture is cooled to below 30 ℃, the mixture is added into an injection molding machine for extrusion, and then the mixture is cooled and coated with a film to obtain the lead-free X-ray and gamma-ray protective hard material with the thickness of 8 mm.
Example 2:
a lead-free X-ray and gamma-ray protective hard material comprises the following raw materials by weight:
100 parts of PVC (polyvinyl chloride), 200 parts of W (tungsten powder), 124 parts of Bi2O3 (bismuth oxide), 40 parts of Gd2O3 (gadolinium oxide), 42 parts of Ta2O5 (tantalum oxide), 7 parts of calcium-zinc composite heat stabilizer, 8 parts of CPE (chlorinated polyethylene), 1 part of SA (stearic acid), 1.5 parts of PE wax (polyethylene wax) and 5 parts of KH550 (coupling agent).
The materials are put into a speed-adjustable temperature-controlled stirring device, after the materials are uniformly stirred at a high speed, the mixture is cooled to below 30 ℃, and the mixture is added into a plastic extruder to be extruded, cooled and coated with a film, so that the lead-free X-ray and gamma-ray protective hard material with the thickness of 8mm is obtained.
Example 3:
a lead-free X-ray and gamma-ray protective hard material comprises the following raw materials by weight:
100 parts of PVC (polyvinyl chloride), 250 parts of W (tungsten powder), 155 parts of Bi2O3 (bismuth oxide), 50 parts of Gd2O3 (gadolinium oxide), 52.5 parts of Ta2O5 (tantalum oxide), 7 parts of calcium-zinc composite heat stabilizer, 8 parts of CPE (chlorinated polyethylene), 1 part of SA (stearic acid), 1.5 parts of PE wax (polyethylene wax) and 5 parts of KH550 (coupling agent).
The materials are put into a speed-adjustable temperature-controlled stirring device, after the materials are uniformly stirred at a high speed, the mixture is cooled to below 30 ℃, and the mixture is added into a plastic extruder to be extruded, cooled and coated with a film, so that the lead-free X-ray and gamma-ray protective hard material with the thickness of 8mm is obtained.
Example 4:
a lead-free X-ray and gamma-ray protective hard material comprises the following raw materials by weight:
100 parts of PVC (polyvinyl chloride), 300 parts of W (tungsten powder), 186 parts of Bi2O3 (bismuth oxide), 60 parts of Gd2O3 (gadolinium oxide), 63 parts of Ta2O5 (tantalum oxide), 7 parts of calcium-zinc composite heat stabilizer, 8 parts of CPE (chlorinated polyethylene), 1 part of SA (stearic acid), 1.5 parts of PE wax (polyethylene wax) and 5 parts of KH550 (coupling agent).
The materials are put into a speed-adjustable temperature-controlled stirring device, after the materials are uniformly stirred at a high speed, the mixture is cooled to below 30 ℃, and the mixture is added into a plastic extruder to be extruded, cooled and coated with a film, so that the lead-free X-ray and gamma-ray protective hard material with the thickness of 8mm is obtained.
Example 5:
a lead-free X-ray and gamma-ray protective hard material comprises the following raw materials by weight:
100 parts of PVC (polyvinyl chloride), 350 parts of W (tungsten powder), 217 parts of Bi2O3 (bismuth oxide), 70 parts of Gd2O3 (gadolinium oxide), 73.5 parts of Ta2O5 (tantalum oxide), 7 parts of calcium-zinc composite heat stabilizer, 8 parts of CPE (chlorinated polyethylene), 1 part of SA (stearic acid), 1.5 parts of PE wax (polyethylene wax) and 5 parts of KH550 (coupling agent).
The materials are put into a speed-adjustable temperature-controlled stirring device, after uniform stirring, the mixture is cooled to below 30 ℃, and the mixture is added into a plastic extruder for extrusion, and then is cooled and coated with a film to obtain the lead-free X and gamma ray protection hard material with the thickness of 8 mm.
Table one: example ratio statistics Table
| Practice ofExample (b) | 1 | 2 | 3 | 4 | 5 |
| PVC (polyvinyl chloride) | 100 | 100 | 100 | 100 | 100 |
| PE (polyethylene) | |||||
| PP (Polypropylene) | |||||
| PS (polyphenylene) | |||||
| ABS (engineering plastic) | |||||
| W (tungsten powder) | 150 | 200 | 250 | 300 | 350 |
| Bi2O3(bismuth oxide) | 93 | 124 | 155 | 186 | 217 |
| Gd2O3(gadolinium oxide) | 30 | 40 | 50 | 60 | 70 |
| Ta2O5(tantalum oxide) | 31.5 | 42 | 52.5 | 63 | 73.5 |
| Calcium-zinc composite stabilizer | 7 | 7 | 7 | 7 | 7 |
| CPE (chlorinated polyethylene) | 8 | 8 | 8 | 8 | 8 |
| SA (stearic acid) | 1 | 1 | 1 | 1 | 1 |
| PE wax (polyethylene wax) | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
| KH550 (coupling agent) | 5 | 5 | 5 | 5 | 5 |
The components of one of the tables are calculated in parts by weight.
Table two: radiation protection effect data table of embodiment
The lead equivalent in the second table is measured by lead-free X-ray and gamma-ray protection hard materials under the voltage of a 120KV tube.
Claims (10)
1. The lead-free X-ray and gamma-ray protection hard material is characterized by comprising a resin base material, functional particles and an auxiliary agent, wherein the weight ratio of the resin base material to the functional particles is 1: 1.5-3.5;
the resin substrate comprises any one or a combination of polyvinyl chloride, polyethylene, polypropylene, polyphenylene and engineering plastics;
the functional particles comprise tungsten powder, bismuth oxide, gadolinium oxide and tantalum oxide;
the auxiliary agent comprises a calcium-zinc composite stabilizer, chlorinated polyethylene, stearic acid, polyethylene wax and a coupling agent.
2. The lead-free X and gamma ray protective hard material as claimed in claim 1, wherein the resin substrate is polyvinyl chloride.
3. The lead-free hard X-ray and gamma-ray protective material as claimed in claim 1, wherein the weight ratio of the resin base material to the tungsten powder, the bismuth oxide, the gadolinium oxide and the tantalum oxide is 1:1 xX: 0.62 xX: 0.2 xX: 0.21 xX, wherein the value of X is 1-6.
4. The lead-free hard X-ray and gamma-ray protective material according to claim 1,
the purity of the tungsten powder is not less than 98%, the granularity is not less than 300 meshes, and the density is not less than 19g/cm3；
And/or the presence of a gas in the gas,
the bismuth oxide is alpha type or beta type, the purity of the bismuth oxide is not less than 99%, the granularity is not less than 300 meshes, and the density is not less than 8.5g/cm3；
And/or the presence of a gas in the gas,
the gadolinium oxide has the purity of not less than 95%, the granularity of not less than 300 meshes and the density of not less than 7.4g/cm3；
And/or the presence of a gas in the gas,
the purity of the tantalum oxide is not less than 98%, the granularity is not less than 300 meshes, and the density is not less than 8.7g/cm3。
5. The lead-free X-ray and gamma-ray protective hard material as claimed in claim 1, characterized by comprising the following raw materials in parts by weight:
100 parts of polyvinyl chloride, 350 parts of tungsten powder, 217 parts of bismuth oxide, 70 parts of gadolinium oxide, 73.5 parts of tantalum oxide, 7 parts of calcium-zinc composite heat stabilizer, 8 parts of chlorinated polyethylene, 1 part of stearic acid, 1.5 parts of polyethylene wax and 5 parts of coupling agent.
6. The lead-free X-ray and gamma-ray protective hard material as claimed in claim 1, which is prepared by the following method: the raw materials are evenly stirred and then are extruded and molded to obtain the composite material.
7. The lead-free X-ray and gamma-ray protective hard material as claimed in claim 1, which is prepared by the following method: the raw materials are uniformly stirred in a temperature-controlled stirring device, and after the mixture is cooled to below 30 ℃, the mixture is added into a plastic extruder for extrusion, and then the mixture is cooled and coated with a film, so that the composite material is obtained.
8. The lead-free X-ray and gamma-ray protective hard material as claimed in claim 1, which is prepared by the following method:
adding the resin base material into a temperature-controlled stirring device, stirring for 5 minutes at the temperature of 40-50 ℃, adding the functional particles and the auxiliary agent, and stirring at a high speed for 15 minutes at the temperature of 70-80 ℃ to obtain a raw material mixture;
cooling the raw material mixture to below 30 ℃;
feeding the cooled raw material mixture into a plastic extruder, heating the raw material mixture in a first zone to 125 ℃, heating the raw material mixture in a second zone to 165 ℃, heating the raw material mixture in a third zone to 165 ℃, heating the raw material mixture in a fourth zone to 150 ℃ and heating the raw material mixture in a fifth zone to 135 ℃, injecting the raw material mixture into a forming die, then forming the raw material mixture through the die, cooling and forming the raw material mixture, cooling the raw material mixture in a water tank, drawing the raw material mixture through a tractor, coating a film on a heating film coating machine, and cutting the raw material mixture through a fixed-length transverse cutting machine to prepare the hard protective material, wherein the forming die comprises two sets of front and back arranged devices and are provided with cooling circulating water devices;
and cooling the extruded protective material, laminating, and baking and heating the film and rolling by a plastic roller.
9. The lead-free hard X-ray and gamma-ray protective material as claimed in claim 1, wherein the lead-free hard X-ray and gamma-ray protective material is used for protecting against X-ray and gamma-ray radiation in specific applications.
10. A method for preparing lead-free X-ray and gamma-ray protective hard materials, which is characterized in that the lead-free X-ray and gamma-ray protective hard materials are prepared by mixing the raw materials according to claim 1 and performing extrusion molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110960495.2A CN113674887A (en) | 2021-08-20 | 2021-08-20 | Lead-free X-ray and gamma-ray protection hard material and preparation method thereof |
Applications Claiming Priority (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115602348A (en) * | 2022-10-12 | 2023-01-13 | 中广核研究院有限公司（Cn） | Gamma ray protective composition, film, fabric and its preparation method and protective clothing |
| CN116200007A (en) * | 2022-09-30 | 2023-06-02 | 四川蒙迪睿尔新材料有限公司 | Leadless organic nanometer anti-ionizing radiation composite material, plate and preparation process |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1748263A (en) * | 2002-12-17 | 2006-03-15 | 兰爱克谢斯德国有限责任公司 | Lead-free mixture used as an additive for shielding radiation |
| US20100203322A1 (en) * | 2009-02-09 | 2010-08-12 | Sumitomo Metal Mining Co., Ltd. | Heat ray shielding glass and manufacturing method of the same |
| WO2013100875A2 (en) * | 2011-12-28 | 2013-07-04 | Ertan Mevlut | Elastic material for protection against ionised radiation |
| CN106213630A (en) * | 2016-07-27 | 2016-12-14 | 中国工程物理研究院材料研究所 | A kind of multilamellar radiation protection gloves and processing technology thereof |
| CN107316667A (en) * | 2017-06-13 | 2017-11-03 | 北京加华科技有限公司 | A kind of radiation protection material and its manufacture method |
| CN107672144A (en) * | 2017-09-11 | 2018-02-09 | 晋城市巨德型材有限公司 | A kind of production method of PVC profile |
| CN110564154A (en) * | 2019-10-23 | 2019-12-13 | 四川大学 | bonded polyarylene sulfide metal composite material with nuclear radiation protection function and preparation method thereof |
| CN112063159A (en) * | 2020-09-07 | 2020-12-11 | 圣华盾防护科技股份有限公司 | Breathable X/gamma ray shielding composite material and preparation method thereof |
-
2021
- 2021-08-20 CN CN202110960495.2A patent/CN113674887A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1748263A (en) * | 2002-12-17 | 2006-03-15 | 兰爱克谢斯德国有限责任公司 | Lead-free mixture used as an additive for shielding radiation |
| US20100203322A1 (en) * | 2009-02-09 | 2010-08-12 | Sumitomo Metal Mining Co., Ltd. | Heat ray shielding glass and manufacturing method of the same |
| WO2013100875A2 (en) * | 2011-12-28 | 2013-07-04 | Ertan Mevlut | Elastic material for protection against ionised radiation |
| CN106213630A (en) * | 2016-07-27 | 2016-12-14 | 中国工程物理研究院材料研究所 | A kind of multilamellar radiation protection gloves and processing technology thereof |
| CN107316667A (en) * | 2017-06-13 | 2017-11-03 | 北京加华科技有限公司 | A kind of radiation protection material and its manufacture method |
| CN107672144A (en) * | 2017-09-11 | 2018-02-09 | 晋城市巨德型材有限公司 | A kind of production method of PVC profile |
| CN110564154A (en) * | 2019-10-23 | 2019-12-13 | 四川大学 | bonded polyarylene sulfide metal composite material with nuclear radiation protection function and preparation method thereof |
| CN112063159A (en) * | 2020-09-07 | 2020-12-11 | 圣华盾防护科技股份有限公司 | Breathable X/gamma ray shielding composite material and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116200007A (en) * | 2022-09-30 | 2023-06-02 | 四川蒙迪睿尔新材料有限公司 | Leadless organic nanometer anti-ionizing radiation composite material, plate and preparation process |
| CN115602348A (en) * | 2022-10-12 | 2023-01-13 | 中广核研究院有限公司（Cn） | Gamma ray protective composition, film, fabric and its preparation method and protective clothing |
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Application publication date: 20211119 |